:root {
  --accent: #00546e;
  --text: #222;
  --text-sub: #666;
  --line: #e3e3e0;
  --bg: #fff;
  --bg-sub: #f7f7f5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.8;
  font-size: 16px;
}

a { color: var(--accent); }
a:hover { opacity: .8; }

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-top: 20px;
  padding-bottom: 20px;
}
.site-title {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .02em;
}
.site-title a { display: block; color: var(--text); text-decoration: none; }
.site-title img { display: block; height: 52px; width: auto; }
.site-nav a {
  color: var(--text);
  text-decoration: none;
  font-size: .95rem;
  margin-left: 20px;
}
.site-nav a:first-child { margin-left: 0; }
.site-nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }

/* Main */
main { padding: 48px 0 80px; }

h1 { font-size: 1.6rem; margin: 0 0 32px; }
h2 { font-size: 1.25rem; margin: 56px 0 16px; }
h2:first-child { margin-top: 0; }
h3 { font-size: 1.05rem; margin: 28px 0 8px; }

main ul { padding-left: 1.5em; }
main ul li { margin: 4px 0; }

.lead { color: var(--text-sub); }

/* Hero (top page) */
.hero {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
}
.hero img {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 35, 46, .6), rgba(0, 35, 46, 0) 55%);
}
.hero-text {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 18px;
  z-index: 1;
  color: #fff;
}
.hero-text h1 {
  margin: 0;
  font-size: 1.7rem;
  line-height: 1.5;
}
.hero-text p {
  margin: 4px 0 0;
  font-size: .95rem;
  opacity: .9;
}
@media (max-width: 640px) {
  .hero img { aspect-ratio: 4 / 3; }
  .hero-text { left: 18px; right: 18px; bottom: 12px; }
  .hero-text h1 { font-size: 1.2rem; }
  .hero-text p { font-size: .8rem; }
}

/* Business cards */
.business {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}
@media (max-width: 640px) {
  .business { grid-template-columns: 1fr; }
}
.business .item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  background: var(--bg-sub);
}
.business .item h3 { margin: 0 0 8px; font-size: 1.05rem; }
.business .item p { margin: 0 0 12px; font-size: .95rem; }
.business .item p:last-child { margin-bottom: 0; }

/* News list */
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.news-list time {
  flex: none;
  color: var(--text-sub);
  font-size: .9rem;
  font-variant-numeric: tabular-nums;
}
.news-list .pending { color: var(--text-sub); }

.badge {
  flex: none;
  font-size: .75rem;
  color: var(--accent);
  border: 1px solid currentColor;
  border-radius: 3px;
  padding: 1px 8px;
  white-space: nowrap;
}

/* Category filter */
.filter { margin: 0 0 24px; }
.filter button {
  font: inherit;
  font-size: .9rem;
  color: var(--text-sub);
  background: none;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 4px 16px;
  margin-right: 8px;
  cursor: pointer;
}
.filter button[aria-pressed="true"] {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

/* Article body (WordPress 移行記事のブロックを含む) */
article img { max-width: 100%; height: auto; }
article figure { margin: 24px 0; }
article figure.is-style-vk-image-border img { border: 1px solid var(--line); }
article table { border-collapse: collapse; display: block; overflow-x: auto; }
article th, article td { border: 1px solid var(--line); padding: 8px 12px; vertical-align: top; text-align: left; }
article pre.wp-block-code {
  background: var(--bg-sub);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 18px;
  overflow-x: auto;
  font-size: .875rem;
  line-height: 1.7;
}
article code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.vk_borderBox_title_container { color: #fff; padding: 6px 16px; border-radius: 6px 6px 0 0; margin-top: 28px; }
.vk_borderBox_title_container h4 { margin: 0; font-size: 1rem; }
.has-vivid-green-cyan-background-color { background-color: #00a08a; }
.has-vivid-red-background-color { background-color: #cf2e2e; }
.has-vk-color-primary-vivid-background-color { background-color: var(--accent); }
.vk_borderBox_body { border: 1px solid var(--line); border-top: none; border-radius: 0 0 6px 6px; padding: 4px 16px; margin-bottom: 28px; }

.wp-block-file { margin: 24px 0; }
.wp-block-file__button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 6px;
  padding: 5px 18px;
  margin-left: 12px;
  font-size: .9rem;
}

/* Article */
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-sub);
  font-size: .9rem;
  margin-bottom: 8px;
}
article h1 { margin-bottom: 12px; }

/* Company table */
.company-table {
  width: 100%;
  border-collapse: collapse;
}
.company-table th, .company-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font-weight: normal;
}
.company-table th {
  width: 9em;
  color: var(--text-sub);
  white-space: nowrap;
}

/* Button */
.button {
  display: inline-block;
  color: #fff;
  background: var(--accent);
  text-decoration: none;
  border-radius: 6px;
  padding: 10px 28px;
  font-size: .95rem;
}

/* Mobile */
@media (max-width: 720px) {
  .site-header .container {
    display: block;
    padding-top: 12px;
    padding-bottom: 0;
  }
  .site-title img { height: 38px; }
  .site-nav {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    white-space: nowrap;
    padding: 10px 0 12px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav a { margin-left: 0; flex: none; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .container { padding: 0 18px; }
  main { padding: 32px 0 64px; }
  h1 { font-size: 1.35rem; margin-bottom: 24px; }
  h2 { font-size: 1.15rem; margin-top: 44px; }

  .company-table th, .company-table td { display: block; }
  .company-table th { width: auto; padding: 10px 0 0; border-bottom: none; }
  .company-table td { padding: 2px 0 10px; }

  .news-list li { flex-wrap: wrap; row-gap: 2px; }
  .news-list li a, .news-list li .pending { flex-basis: 100%; }
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--text-sub);
  font-size: .85rem;
}
.site-footer p { margin: 0; }